45mm F1.8 AF Compact Full Frame (Sony E)
45mm F1.8 AF Compact Full Frame (Sony E)
45mm F1.8 AF Compact Full Frame (Sony E)
45mm F1.8 AF Compact Full Frame (Sony E)
45mm F1.8 AF Compact Full Frame (Sony E)
45mm F1.8 AF Compact Full Frame (Sony E)
45mm F1.8 AF Compact Full Frame (Sony E)
45mm F1.8 AF Compact Full Frame (Sony E)
45mm F1.8 AF Compact Full Frame (Sony E)
45mm F1.8 AF Compact Full Frame (Sony E)
45mm F1.8 AF Compact Full Frame (Sony E)
45mm F1.8 AF Compact Full Frame (Sony E)
45mm F1.8 AF Compact Full Frame (Sony E)
45mm F1.8 AF Compact Full Frame (Sony E)

45mm F1.8 AF Compact Full Frame (Sony E)


Regular price$299.00
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Model: SYIO45AF-E

UPC: 0-84438-76620-2

Focal Length: 45mm

Maximum Aperture: F1.8

Coverage: Full Frame (FX)

Optical Construction: 7 Glass Elements in 6 Groups

Aperture Range: F1.8 - 22

Diaphragm Blades: 9

Coating: Ultra Multi-Coating (UMC)

Minimum Focusing Distance: 17.7" (0.45m)

Filter Size: 49mm

Lens Hood: Removable

Maximum Diameter: 2.43” (61.8mm)

Weight: 5.71oz (162g)

Length: 2.2" (56.1mm)

The 45mm focal length provides a natural appearance, approximating how we perceive a scene with our own eyes.  It is actually closer to the human eye than a 50mm focal length is. This focal length is great for general purpose use and can be readily used for portraiture, extreme sports, parties, lifestyle, architecture, landscape, street photography and more.

Optically, the lens is made up of 7 elements in 6 groups. Two Aspherical plus one Extra-low Dispersion element and Ultra Multi-Coating are utilized to effectively control vignetting, distortion and chromatic aberration. Additionally, the rounded nine-blade diaphragm and F1.8 bright aperture produce a pleasing out-of-focus quality when working with shallow depth of field techniques. 

The minimum focusing distance is 17.7” and the 49mm non-rotating filter mount allows for easy use of polarizing and other filters that require precise positioning. For Sony APS-C sensor cameras, the focal length is equivalent to a moderate telephoto of 67.5mm.

Construction has been optimized for portability, compactness, ergonomic handling, and the durability of a metal barrel. Offering quiet and accurate autofocusing with enhanced speed and at 5.71oz in weight and 2.43” in length, it is the perfect lens to live on your Sony camera always. Don’t miss that special and unique moment! It is often said “The best camera (and lens) is the one you have with you”.


Model nameAF 45mm F1.8 FE
Aperture rangeF1.8 ~ 22
Lens optical construction9 Elements in 8 Groups
Special lens2 Aspherical, 1 Extra Low Dispersion
Minimum focusing distance0.45m (1.48ft)
Maximum magnification ratiox 0.12
Filter size49mm
Number of blades9
MountSony E
Angle of viewFull Frame52.31˚
Maximum diameter61.8mm
AF MotorLinear stepping motor

MTF Chart

Optical Construction


45mm is the new gold standard when it comes to field of view, providing the 53 degree angle that most naturally fits the human field of vision

The Samyang AF 45mm F1.8 E has been designed to provide the most suitable angle of view to imitate the natural human field of vision (53 degrees), and its design sets a new standard in lens craftsmanship. Freed from the design limitations of lenses for reflex cameras, and embracing the strengths of optical designs for mirrorless cameras, Samyang brings you a new breed of standard lens.

A new era in lens design – A lens made especially for mirrorless cameras

Invented in 1888, the Double Gauss lens design is still used today, but it is not ideal for mirrorless cameras, which is why Samyang has developed a new kind of lens that smoothes over many of the weaknesses of mirrorless cameras through cutting edge lens technology, while enhancing the high resolution offered by mirrorless cameras. So try the Samyang AF 45mm F1.8 E to experience the incredible resolution for which specialized prime lenses are known, and take advantage of the high pixel count of your mirrorless camera with its innovative lens design.

Delivering closer, clearer pictures even at a close focus distance of 45cm

With a minimum focus distance of 45cm, the Samyang AF 45mm F1.8 E offers you a feeling of intimacy which is crucial to taking close up pictures of babies and pets. At only 162g, the AF 45mm F1.8 E is so light you can carry it with you anywhere and everywhere.

Achieve beautiful blurry backgrounds with a bright F1.8 aperture

The bright aperture of the F1.8 allows many different expressions of photographic depth. A shallow depth of field provides the beautiful blurry background that highlights a subject and emphasizes its liveliness, while also providing a range of perspectives when portraying a variety of subjects like babies, pets, and food.

Weighing only 162g, it’s a perfect lens for small, light, mirrorless cameras

This light, compact lens complements the strengths of mirrorless cameras. With 40 years of excellence in lens design, Samyang has created an optic that will give the photographer clear resolution without weighing them down. It’s a lens so light that it will fit in the palm of your hand, and so quiet that you can enjoy it in any situation.

The iris mechanism uses 9 aperture blades to create brightly defined sunstars

With 9 aperture blades, this lens offers consistent, beautiful bokeh, and clearly defined sunstars when the aperture is stopped-down. Whether it’s day or night, those sunstars will add extra panache to any photo.

Fast, precise and quiet auto focusing

Never miss another unforgettable moment with this fast, smooth autofocus with zero vibrations. With its Linear Stepping Motor technology, you can experience consistent, internal autofocusing, which is fast and stable.

Sample Gallery